Improvement in hoop-machines



R.VH. NOGAR. Hoop-Machine.

No. 221,344. i PatentedNov. 4, 1879.

WT v

ILPETERS. PHOTOUTMDGRAPHER. WASHINGTON, D C.

UNrTnD S'rrrrmis- PATENT OFFICE.

RUSSELL H. NOGAR, OF CARLETON, MICHIGAN.

IMPROVEMENT IN HOOP-MACHINES.

Specification forming part of Letters Patent No. 221,344, dated November4, 1879 g application filed April 15, 1879.

To all whom it may concern:

Be it known that I, RUSSELL H. NOGAR, of Carleton, in the county ofMonroe and Sta-te of Michigan, have invented an Improvement inHoop-Machines, of which the following is a specification.

The nature of my invention relates to certain new and usefulimprovements in the construction of that class ot' machines employed tocut hoops from planks or boards; and the invention consists in thepeculiar construction and arrangement of certain rotating cutters whichform the hoops and finish their edges, all as more fully hereinafter setforth.

In the drawings, Figure 1 is a perspective view. Fig. 2 is a verticallongitudinal central section; and Figs. 3 and 4 are sections, on lines mfr and y y, through the cutter-knife.

In the accompanying drawings, which form a part of this specification, Arepresents a suitable frame, near the front end of which is journaledthe feed-roll B. Below the bed of the machine, and immediately above it,is the feed-roll C, journaled in boxes a., which are removably placed inthe frame. Just in the rear of these rolls is another smaller roll, D,which acts as a pressure-roll. These rolls are retained in their properpositions by means of the yokes b, the ends of which press upon the topof the boxes. These yokes are connected at or near their centers to rodsc, the lower ends of which are attached to levers d, pivoted at one endto the frame, while their outer ends carry the weights E. This manner ofarranging the parts allows the rollers to give to any inequalities theremaybein the plank or board as it passes under and between them.

A rotating cntter, F, is journaled in proper bearings laterally acrossthe machine, and the shaft of the cutter carries upon one end a pulley,c, by means of which the said cutter is rotated.

The teeth of these cutters are concave in cross-section, as shown, andtaper from their heads to their points, and the heads of the spacesbetween the teeth are also concave and sharpened. As these cuttersrotate they cut nearly through the plank, partially forining the sameinto bevel-hoops, the sides and the upper edges of which are finished asthey leave the cut-ter.

G is a corrugated pressure'roll, journaled in boxes g, which guides thestrips or hoops to and between the guide-rolls H H.

The guide-roll H and pressure-roll G are retained in theirV positions bya yoke and lever, similar in construction to those already described,which press upon their boxes. Y

Upon one end of the shafts that carry the feed-rolls B C and theguide-rolls H H are secured the pinions I I, which mesh with each otherin pairs and with a geared driving wheel, J, as shown.

At the rear end of the frame is properly journaled a rotating cutter, K,the knives of which, operating upon the under side of the plank,complete the dividing of the saine into bevel-hoops, while at the sametime they fur ish or round oft' the thicker edges.

It are standards, to which is secured a frame, L, and in such a mannerthat it will have a vertical pla-y therein. To the under side of thisframe L are secured suitable hangers and boxes, in which are journaledthe corru gated pressure-rolls M, the office of which is to keep thehoops in contact with the cutter K.

In practice, a plank or board of the desired thickness is passed to themachine between the feed-rollers B C. These rollers then feed the plankunder the pressure-roll D and the vrevolvin g cutter F, which latterpartially divides the board into bevel strips or hoops, and rounds offor finishes the thinner edges.

The strips thus formed pass ou under the corrugated pressure-roller Gr,which guides them to and between the guide-rolls H H', and from thencethey are fed under the pressure-rolls M, holding the stripsin contactwith the cutter K, by which the hoops are completely divided and thethicker edges of the hoop are nished.

The strips are now ready to be operated upon by a machine especiallydesigned to point and chainfer their ends.

Vhat I claim as my invention is rlhe entter F, the front faees of theteeth of round off or finish their upper edges as prewhieh are concavein Cross-section, thereby sented to the cutter, snhstantlzdly as setforming two cutting-edges, said teeth tnperforth.

ingI from their base to their points7 with the l RUSSELL U. NOGAT. headsof the spaces between said teeth also I Witnesses: concave andsharpened, and adapted to l S. SPRAGUE,

smoothly entl both sides ot' the hoops and i CII/is. THURMAN.

